PrepU Ch. 41- Introduction to the Sensory System.docx

PrepU Ch. 41- Introduction to the Sensory System.docx - A...

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A client suffered trauma to the sclera and is being treated for a subsequent infection. During client education, the nurse indicates where the sclera is attached. Which structure would not be included? eyelids Explanation: The sclera does not attach to the eyelids. The sclera protects structures in the eye, and connects directly to the cornea, anterior chamber, iris, and pupil. A client has been prescribed eye drops for the treatment of glaucoma. At the yearly follow-up appointment, the client tells the nurse that she has stopped using the medication because her vision did not improve. Which action by the nurse is appropriate? Explain the therapeutic effect and expected outcome of the medication. Explanation: The nurse needs to explain the therapeutic effect and expected outcome of the medication. The medication is not a cure for glaucoma, but can slow the progression. The client will not see improvements in vision with the use of the medication but should experience little to no deterioration of vision. The doctor may choose to switch the medication, but not because the vision is not improving; it would be based on not obtaining the set intraocular pressure. Administering the medication immediately or referring the client to the emergency department is not appropriate because this is not an emergent situation. A client presents to the ED reporting a chemical burn to both eyes. Which is the priority nursing intervention? Irrigate both eyes. Explanation: The eyes should immediately be irrigated to remove the chemical and preserve the eye. If the chemical is allowed to remain on the eye surface, it may cause ulcerations and permanent damage to the eye. It is appropriate to obtain the MSDS and assess the pH of the corneal surface after irrigation has begun. Irrigation should continue until the pH normalizes. Visual acuity can be assessed once the emergent phase is over. A patient is suspected of having glaucoma. What reading of IOP would demonstrate an increase resulting from optic nerve damage?
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21 mm Hg or higher Explanation: Intraocular pressure of greater than 21 mm Hg is a sign of primary open-angle glaucoma. The nurse is performing an assessment of the visual fields for a patient with glaucoma. When assessing the visual fields in acute glaucoma, what would the nurse expect to find? Marked blurring of vision Explanation: Glaucoma is often called the “silent thief of sight” because most patients are unaware that they have the disease until they have experienced visual changes and vision loss. The patient may not seek health care until he or she experiences blurred vision or “halos” around lights, difficulty focusing, difficulty adjusting eyes in low lighting, loss of peripheral vision, aching or discomfort around the eyes, and headache.
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  • Summer '17
  • Sharon Collins
  • Otitis Externa, open-angle glaucoma

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